<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------

namespace think;

class Request {
	/**
	 * @var object 对象实例
	 */
	protected static $instance;

	protected $method;
	/**
	 * @var string 域名（含协议和端口）
	 */
	protected $domain;

	/**
	 * @var string URL地址
	 */
	protected $url;

	/**
	 * @var string 基础URL
	 */
	protected $baseUrl;

	/**
	 * @var string 当前执行的文件
	 */
	protected $baseFile;

	/**
	 * @var string 访问的ROOT地址
	 */
	protected $root;

	/**
	 * @var string pathinfo
	 */
	protected $pathinfo;

	/**
	 * @var string pathinfo（不含后缀）
	 */
	protected $path;

	/**
	 * @var array 当前路由信息
	 */
	protected $routeInfo = [];

	/**
	 * @var array 环境变量
	 */
	protected $env;

	/**
	 * @var array 当前调度信息
	 */
	protected $dispatch = [];
	protected $module;
	protected $controller;
	protected $action;
	// 当前语言集
	protected $langset;

	/**
	 * @var array 请求参数
	 */
	protected $param = [];
	protected $get = [];
	protected $post = [];
	protected $request = [];
	protected $route = [];
	protected $put;
	protected $session = [];
	protected $file = [];
	protected $cookie = [];
	protected $server = [];
	protected $header = [];

	/**
	 * @var array 资源类型
	 */
	protected $mimeType = [
		'xml' => 'application/xml,text/xml,application/x-xml',
		'json' => 'application/json,text/x-json,application/jsonrequest,text/json',
		'js' => 'text/javascript,application/javascript,application/x-javascript',
		'css' => 'text/css',
		'rss' => 'application/rss+xml',
		'yaml' => 'application/x-yaml,text/yaml',
		'atom' => 'application/atom+xml',
		'pdf' => 'application/pdf',
		'text' => 'text/plain',
		'image' => 'image/png,image/jpg,image/jpeg,image/pjpeg,image/gif,image/webp,image/*',
		'csv' => 'text/csv',
		'html' => 'text/html,application/xhtml+xml,*/*',
	];

	protected $content;

	// 全局过滤规则
	protected $filter;
	// Hook扩展方法
	protected static $hook = [];
	// 绑定的属性
	protected $bind = [];
	// php://input
	protected $input;
	// 请求缓存
	protected $cache;
	// 缓存是否检查
	protected $isCheckCache;
	/**
	 * 是否合并Param
	 * @var bool
	 */
	protected $mergeParam = false;

	/**
	 * 构造函数
	 * @access protected
	 * @param array $options 参数
	 */
	protected function __construct($options = []) {
		foreach ($options as $name => $item) {
			if (property_exists($this, $name)) {
				$this->$name = $item;
			}
		}
		if (is_null($this->filter)) {
			$this->filter = Config::get('default_filter');
		}

		// 保存 php://input
		$this->input = file_get_contents('php://input');
	}

	public function __call($method, $args) {
		if (array_key_exists($method, self::$hook)) {
			array_unshift($args, $this);
			return call_user_func_array(self::$hook[$method], $args);
		} else {
			throw new Exception('method not exists:' . __CLASS__ . '->' . $method);
		}
	}

	/**
	 * Hook 方法注入
	 * @access public
	 * @param string|array $method   方法名
	 * @param mixed        $callback callable
	 * @return void
	 */
	public static function hook($method, $callback = null) {
		if (is_array($method)) {
			self::$hook = array_merge(self::$hook, $method);
		} else {
			self::$hook[$method] = $callback;
		}
	}

	/**
	 * 初始化
	 * @access public
	 * @param array $options 参数
	 * @return \think\Request
	 */
	public static function instance($options = []) {
		if (is_null(self::$instance)) {
			self::$instance = new static($options);
		}
		return self::$instance;
	}

	/**
	 * 销毁当前请求对象
	 * @access public
	 * @return void
	 */
	public static function destroy() {
		if (!is_null(self::$instance)) {
			self::$instance = null;
		}
	}

	/**
	 * 创建一个URL请求
	 * @access public
	 * @param string $uri    URL地址
	 * @param string $method 请求类型
	 * @param array  $params 请求参数
	 * @param array  $cookie
	 * @param array  $files
	 * @param array  $server
	 * @param string $content
	 * @return \think\Request
	 */
	public static function create($uri, $method = 'GET', $params = [], $cookie = [], $files = [], $server = [], $content = null) {
		$server['PATH_INFO'] = '';
		$server['REQUEST_METHOD'] = strtoupper($method);
		$info = parse_url($uri);
		if (isset($info['host'])) {
			$server['SERVER_NAME'] = $info['host'];
			$server['HTTP_HOST'] = $info['host'];
		}
		if (isset($info['scheme'])) {
			if ('https' === $info['scheme']) {
				$server['HTTPS'] = 'on';
				$server['SERVER_PORT'] = 443;
			} else {
				unset($server['HTTPS']);
				$server['SERVER_PORT'] = 80;
			}
		}
		if (isset($info['port'])) {
			$server['SERVER_PORT'] = $info['port'];
			$server['HTTP_HOST'] = $server['HTTP_HOST'] . ':' . $info['port'];
		}
		if (isset($info['user'])) {
			$server['PHP_AUTH_USER'] = $info['user'];
		}
		if (isset($info['pass'])) {
			$server['PHP_AUTH_PW'] = $info['pass'];
		}
		if (!isset($info['path'])) {
			$info['path'] = '/';
		}
		$options = [];
		$options[strtolower($method)] = $params;
		$queryString = '';
		if (isset($info['query'])) {
			parse_str(html_entity_decode($info['query']), $query);
			if (!empty($params)) {
				$params = array_replace($query, $params);
				$queryString = http_build_query($params, '', '&');
			} else {
				$params = $query;
				$queryString = $info['query'];
			}
		} elseif (!empty($params)) {
			$queryString = http_build_query($params, '', '&');
		}
		if ($queryString) {
			parse_str($queryString, $get);
			$options['get'] = isset($options['get']) ? array_merge($get, $options['get']) : $get;
		}

		$server['REQUEST_URI'] = $info['path'] . ('' !== $queryString ? '?' . $queryString : '');
		$server['QUERY_STRING'] = $queryString;
		$options['cookie'] = $cookie;
		$options['param'] = $params;
		$options['file'] = $files;
		$options['server'] = $server;
		$options['url'] = $server['REQUEST_URI'];
		$options['baseUrl'] = $info['path'];
		$options['pathinfo'] = '/' == $info['path'] ? '/' : ltrim($info['path'], '/');
		$options['method'] = $server['REQUEST_METHOD'];
		$options['domain'] = isset($info['scheme']) ? $info['scheme'] . '://' . $server['HTTP_HOST'] : '';
		$options['content'] = $content;
		self::$instance = new self($options);
		return self::$instance;
	}

	/**
	 * 设置或获取当前包含协议的域名
	 * @access public
	 * @param string $domain 域名
	 * @return string
	 */
	public function domain($domain = null) {
		if (!is_null($domain)) {
			$this->domain = $domain;
			return $this;
		} elseif (!$this->domain) {
			$this->domain = $this->scheme() . '://' . $this->host();
		}
		return $this->domain;
	}

	/**
	 * 设置或获取当前完整URL 包括QUERY_STRING
	 * @access public
	 * @param string|true $url URL地址 true 带域名获取
	 * @return string
	 */
	public function url($url = null) {
		if (!is_null($url) && true !== $url) {
			$this->url = $url;
			return $this;
		} elseif (!$this->url) {
			if (IS_CLI) {
				$this->url = isset($_SERVER['argv'][1]) ? $_SERVER['argv'][1] : '';
			} elseif (isset($_SERVER['HTTP_X_REWRITE_URL'])) {
				$this->url = $_SERVER['HTTP_X_REWRITE_URL'];
			} elseif (isset($_SERVER['REQUEST_URI'])) {
				$this->url = $_SERVER['REQUEST_URI'];
			} elseif (isset($_SERVER['ORIG_PATH_INFO'])) {
				$this->url = $_SERVER['ORIG_PATH_INFO'] . (!empty($_SERVER['QUERY_STRING']) ? '?' . $_SERVER['QUERY_STRING'] : '');
			} else {
				$this->url = '';
			}
		}
		return true === $url ? $this->domain() . $this->url : $this->url;
	}

	/**
	 * 设置或获取当前URL 不含QUERY_STRING
	 * @access public
	 * @param string $url URL地址
	 * @return string
	 */
	public function baseUrl($url = null) {
		if (!is_null($url) && true !== $url) {
			$this->baseUrl = $url;
			return $this;
		} elseif (!$this->baseUrl) {
			$str = $this->url();
			$this->baseUrl = strpos($str, '?') ? strstr($str, '?', true) : $str;
		}
		return true === $url ? $this->domain() . $this->baseUrl : $this->baseUrl;
	}

	/**
	 * 设置或获取当前执行的文件 SCRIPT_NAME
	 * @access public
	 * @param string $file 当前执行的文件
	 * @return string
	 */
	public function baseFile($file = null) {
		if (!is_null($file) && true !== $file) {
			$this->baseFile = $file;
			return $this;
		} elseif (!$this->baseFile) {
			$url = '';
			if (!IS_CLI) {
				$script_name = basename($_SERVER['SCRIPT_FILENAME']);
				if (basename($_SERVER['SCRIPT_NAME']) === $script_name) {
					$url = $_SERVER['SCRIPT_NAME'];
				} elseif (basename($_SERVER['PHP_SELF']) === $script_name) {
					$url = $_SERVER['PHP_SELF'];
				} elseif (isset($_SERVER['ORIG_SCRIPT_NAME']) && basename($_SERVER['ORIG_SCRIPT_NAME']) === $script_name) {
					$url = $_SERVER['ORIG_SCRIPT_NAME'];
				} elseif (($pos = strpos($_SERVER['PHP_SELF'], '/' . $script_name)) !== false) {
					$url = substr($_SERVER['SCRIPT_NAME'], 0, $pos) . '/' . $script_name;
				} elseif (isset($_SERVER['DOCUMENT_ROOT']) && strpos($_SERVER['SCRIPT_FILENAME'], $_SERVER['DOCUMENT_ROOT']) === 0) {
					$url = str_replace('\\', '/', str_replace($_SERVER['DOCUMENT_ROOT'], '', $_SERVER['SCRIPT_FILENAME']));
				}
			}
			$this->baseFile = $url;
		}
		return true === $file ? $this->domain() . $this->baseFile : $this->baseFile;
	}

	/**
	 * 设置或获取URL访问根地址
	 * @access public
	 * @param string $url URL地址
	 * @return string
	 */
	public function root($url = null) {
		if (!is_null($url) && true !== $url) {
			$this->root = $url;
			return $this;
		} elseif (!$this->root) {
			$file = $this->baseFile();
			if ($file && 0 !== strpos($this->url(), $file)) {
				$file = str_replace('\\', '/', dirname($file));
			}
			$this->root = rtrim($file, '/');
		}
		return true === $url ? $this->domain() . $this->root : $this->root;
	}

	/**
	 * 获取当前请求URL的pathinfo信息（含URL后缀）
	 * @access public
	 * @return string
	 */
	public function pathinfo() {
		if (is_null($this->pathinfo)) {
			if (isset($_GET[Config::get('var_pathinfo')])) {
				// 判断URL里面是否有兼容模式参数
				$_SERVER['PATH_INFO'] = $_GET[Config::get('var_pathinfo')];
				unset($_GET[Config::get('var_pathinfo')]);
			} elseif (IS_CLI) {
				// CLI模式下 index.php module/controller/action/params/...
				$_SERVER['PATH_INFO'] = isset($_SERVER['argv'][1]) ? $_SERVER['argv'][1] : '';
			}

			// 分析PATHINFO信息
			if (!isset($_SERVER['PATH_INFO'])) {
				foreach (Config::get('pathinfo_fetch') as $type) {
					if (!empty($_SERVER[$type])) {
						$_SERVER['PATH_INFO'] = (0 === strpos($_SERVER[$type], $_SERVER['SCRIPT_NAME'])) ?
						substr($_SERVER[$type], strlen($_SERVER['SCRIPT_NAME'])) : $_SERVER[$type];
						break;
					}
				}
			}
			$this->pathinfo = empty($_SERVER['PATH_INFO']) ? '/' : ltrim($_SERVER['PATH_INFO'], '/');
		}
		return $this->pathinfo;
	}

	/**
	 * 获取当前请求URL的pathinfo信息(不含URL后缀)
	 * @access public
	 * @return string
	 */
	public function path() {
		if (is_null($this->path)) {
			$suffix = Config::get('url_html_suffix');
			$pathinfo = $this->pathinfo();
			if (false === $suffix) {
				// 禁止伪静态访问
				$this->path = $pathinfo;
			} elseif ($suffix) {
				// 去除正常的URL后缀
				$this->path = preg_replace('/\.(' . ltrim($suffix, '.') . ')$/i', '', $pathinfo);
			} else {
				// 允许任何后缀访问
				$this->path = preg_replace('/\.' . $this->ext() . '$/i', '', $pathinfo);
			}
		}
		return $this->path;
	}

	/**
	 * 当前URL的访问后缀
	 * @access public
	 * @return string
	 */
	public function ext() {
		return pathinfo($this->pathinfo(), PATHINFO_EXTENSION);
	}

	/**
	 * 获取当前请求的时间
	 * @access public
	 * @param bool $float 是否使用浮点类型
	 * @return integer|float
	 */
	public function time($float = false) {
		return $float ? $_SERVER['REQUEST_TIME_FLOAT'] : $_SERVER['REQUEST_TIME'];
	}

	/**
	 * 当前请求的资源类型
	 * @access public
	 * @return false|string
	 */
	public function type() {
		$accept = $this->server('HTTP_ACCEPT');
		if (empty($accept)) {
			return false;
		}

		foreach ($this->mimeType as $key => $val) {
			$array = explode(',', $val);
			foreach ($array as $k => $v) {
				if (stristr($accept, $v)) {
					return $key;
				}
			}
		}
		return false;
	}

	/**
	 * 设置资源类型
	 * @access public
	 * @param string|array $type 资源类型名
	 * @param string       $val  资源类型
	 * @return void
	 */
	public function mimeType($type, $val = '') {
		if (is_array($type)) {
			$this->mimeType = array_merge($this->mimeType, $type);
		} else {
			$this->mimeType[$type] = $val;
		}
	}

	/**
	 * 当前的请求类型
	 * @access public
	 * @param bool $method true 获取原始请求类型
	 * @return string
	 */
	public function method($method = false) {
		if (true === $method) {
            // 获取原始请求类型
			return $this->server('REQUEST_METHOD') ?: 'GET';
		} elseif (!$this->method) {
			if (isset($_POST[Config::get('var_method')])) {
				$method = strtoupper($_POST[Config::get('var_method')]);
				if (in_array($method, ['GET', 'POST', 'DELETE', 'PUT', 'PATCH'])) {
					$this->method = $method;
					$this->{$this->method}($_POST);
				} else {
					$this->method = 'POST';
				}
				unset($_POST[Config::get('var_method')]);
			} elseif (isset($_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'])) {
				$this->method = strtoupper($_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE']);
			} else {
				$this->method = $this->server('REQUEST_METHOD') ?: 'GET';
			}
		}
		return $this->method;
    }

	/**
	 * 是否为GET请求
	 * @access public
	 * @return bool
	 */
	public function isGet() {
		return $this->method() == 'GET';
	}

	/**
	 * 是否为POST请求
	 * @access public
	 * @return bool
	 */
	public function isPost() {
		return $this->method() == 'POST';
	}

	/**
	 * 是否为PUT请求
	 * @access public
	 * @return bool
	 */
	public function isPut() {
		return $this->method() == 'PUT';
	}

	/**
	 * 是否为DELTE请求
	 * @access public
	 * @return bool
	 */
	public function isDelete() {
		return $this->method() == 'DELETE';
	}

	/**
	 * 是否为HEAD请求
	 * @access public
	 * @return bool
	 */
	public function isHead() {
		return $this->method() == 'HEAD';
	}

	/**
	 * 是否为PATCH请求
	 * @access public
	 * @return bool
	 */
	public function isPatch() {
		return $this->method() == 'PATCH';
	}

	/**
	 * 是否为OPTIONS请求
	 * @access public
	 * @return bool
	 */
	public function isOptions() {
		return $this->method() == 'OPTIONS';
	}

	/**
	 * 是否为cli
	 * @access public
	 * @return bool
	 */
	public function isCli() {
		return PHP_SAPI == 'cli';
	}

	/**
	 * 是否为cgi
	 * @access public
	 * @return bool
	 */
	public function isCgi() {
		return strpos(PHP_SAPI, 'cgi') === 0;
	}

	/**
	 * 获取当前请求的参数
	 * @access public
	 * @param string|array $name    变量名
	 * @param mixed        $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function param($name = '', $default = null, $filter = '') {
		if (empty($this->mergeParam)) {
			$method = $this->method(true);
			// 自动获取请求变量
			switch ($method) {
			case 'POST':
				$vars = $this->post(false);
				break;
			case 'PUT':
			case 'DELETE':
			case 'PATCH':
				$vars = $this->put(false);
				break;
			default:
				$vars = [];
			}
			// 当前请求参数和URL地址中的参数合并
			$this->param = array_merge($this->param, $this->get(false), $vars, $this->route(false));
			$this->mergeParam = true;
		}
		if (true === $name) {
			// 获取包含文件上传信息的数组
			$file = $this->file();
			$data = is_array($file) ? array_merge($this->param, $file) : $this->param;
			return $this->input($data, '', $default, $filter);
		}
		return $this->input($this->param, $name, $default, $filter);
	}

	/**
	 * 设置获取路由参数
	 * @access public
	 * @param string|array $name    变量名
	 * @param mixed        $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function route($name = '', $default = null, $filter = '') {
		if (is_array($name)) {
			$this->param = [];
			$this->mergeParam = false;
			return $this->route = array_merge($this->route, $name);
		}
		return $this->input($this->route, $name, $default, $filter);
	}

	/**
	 * 设置获取GET参数
	 * @access public
	 * @param string|array $name    变量名
	 * @param mixed        $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function get($name = '', $default = null, $filter = '') {
		if (empty($this->get)) {
			$this->get = $_GET;
		}
		if (is_array($name)) {
			$this->param = [];
			$this->mergeParam = false;
			return $this->get = array_merge($this->get, $name);
		}
		return $this->input($this->get, $name, $default, $filter);
	}

	/**
	 * 设置获取POST参数
	 * @access public
	 * @param string       $name    变量名
	 * @param mixed        $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function post($name = '', $default = null, $filter = '') {
		if (empty($this->post)) {
			$content = $this->input;
			if (empty($_POST) && false !== strpos($this->contentType(), 'application/json')) {
				$this->post = (array) json_decode($content, true);
			} else {
				$this->post = $_POST;
			}
		}
		if (is_array($name)) {
			$this->param = [];
			$this->mergeParam = false;
			return $this->post = array_merge($this->post, $name);
		}
		return $this->input($this->post, $name, $default, $filter);
	}

	/**
	 * 设置获取PUT参数
	 * @access public
	 * @param string|array $name    变量名
	 * @param mixed        $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function put($name = '', $default = null, $filter = '') {
		if (is_null($this->put)) {
			$content = $this->input;
			if (false !== strpos($this->contentType(), 'application/json')) {
				$this->put = (array) json_decode($content, true);
			} else {
				parse_str($content, $this->put);
			}
		}
		if (is_array($name)) {
			$this->param = [];
			$this->mergeParam = false;
			return $this->put = is_null($this->put) ? $name : array_merge($this->put, $name);
		}

		return $this->input($this->put, $name, $default, $filter);
	}

	/**
	 * 设置获取DELETE参数
	 * @access public
	 * @param string|array $name    变量名
	 * @param mixed        $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function delete($name = '', $default = null, $filter = '') {
		return $this->put($name, $default, $filter);
	}

	/**
	 * 设置获取PATCH参数
	 * @access public
	 * @param string|array $name    变量名
	 * @param mixed        $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function patch($name = '', $default = null, $filter = '') {
		return $this->put($name, $default, $filter);
	}

	/**
	 * 获取request变量
	 * @param string       $name    数据名称
	 * @param string       $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function request($name = '', $default = null, $filter = '') {
		if (empty($this->request)) {
			$this->request = $_REQUEST;
		}
		if (is_array($name)) {
			$this->param = [];
			$this->mergeParam = false;
			return $this->request = array_merge($this->request, $name);
		}
		return $this->input($this->request, $name, $default, $filter);
	}

	/**
	 * 获取session数据
	 * @access public
	 * @param string|array $name    数据名称
	 * @param string       $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function session($name = '', $default = null, $filter = '') {
		if (empty($this->session)) {
			$this->session = Session::get();
		}
		if (is_array($name)) {
			return $this->session = array_merge($this->session, $name);
		}
		return $this->input($this->session, $name, $default, $filter);
	}

	/**
	 * 获取cookie参数
	 * @access public
	 * @param string|array $name    数据名称
	 * @param string       $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function cookie($name = '', $default = null, $filter = '') {
		if (empty($this->cookie)) {
			$this->cookie = Cookie::get();
		}
		if (is_array($name)) {
			return $this->cookie = array_merge($this->cookie, $name);
		} elseif (!empty($name)) {
			$data = Cookie::has($name) ? Cookie::get($name) : $default;
		} else {
			$data = $this->cookie;
		}

		// 解析过滤器
		$filter = $this->getFilter($filter, $default);

		if (is_array($data)) {
			array_walk_recursive($data, [$this, 'filterValue'], $filter);
			reset($data);
		} else {
			$this->filterValue($data, $name, $filter);
		}
		return $data;
	}

	/**
	 * 获取server参数
	 * @access public
	 * @param string|array $name    数据名称
	 * @param string       $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function server($name = '', $default = null, $filter = '') {
		if (empty($this->server)) {
			$this->server = $_SERVER;
		}
		if (is_array($name)) {
			return $this->server = array_merge($this->server, $name);
		}
		return $this->input($this->server, false === $name ? false : strtoupper($name), $default, $filter);
	}

	/**
	 * 获取上传的文件信息
	 * @access public
	 * @param string|array $name 名称
	 * @return null|array|\think\File
	 */
	public function file($name = '') {
		if (empty($this->file)) {
			$this->file = isset($_FILES) ? $_FILES : [];
		}
		if (is_array($name)) {
			return $this->file = array_merge($this->file, $name);
		}
		$files = $this->file;
		if (!empty($files)) {
			// 处理上传文件
			$array = [];
			foreach ($files as $key => $file) {
				if (is_array($file['name'])) {
					$item = [];
					$keys = array_keys($file);
					$count = count($file['name']);
					for ($i = 0; $i < $count; $i++) {
						if (empty($file['tmp_name'][$i]) || !is_file($file['tmp_name'][$i])) {
							continue;
						}
						$temp['key'] = $key;
						foreach ($keys as $_key) {
							$temp[$_key] = $file[$_key][$i];
						}
						$item[] = (new File($temp['tmp_name']))->setUploadInfo($temp);
					}
					$array[$key] = $item;
				} else {
					if ($file instanceof File) {
						$array[$key] = $file;
					} else {
						if (empty($file['tmp_name']) || !is_file($file['tmp_name'])) {
							continue;
						}
						$array[$key] = (new File($file['tmp_name']))->setUploadInfo($file);
					}
				}
			}
			if (strpos($name, '.')) {
				list($name, $sub) = explode('.', $name);
			}
			if ('' === $name) {
				// 获取全部文件
				return $array;
			} elseif (isset($sub) && isset($array[$name][$sub])) {
				return $array[$name][$sub];
			} elseif (isset($array[$name])) {
				return $array[$name];
			}
		}
		return;
	}

	/**
	 * 获取环境变量
	 * @param string|array $name    数据名称
	 * @param string       $default 默认值
	 * @param string|array $filter  过滤方法
	 * @return mixed
	 */
	public function env($name = '', $default = null, $filter = '') {
		if (empty($this->env)) {
			$this->env = $_ENV;
		}
		if (is_array($name)) {
			return $this->env = array_merge($this->env, $name);
		}
		return $this->input($this->env, false === $name ? false : strtoupper($name), $default, $filter);
	}

	/**
	 * 设置或者获取当前的Header
	 * @access public
	 * @param string|array $name    header名称
	 * @param string       $default 默认值
	 * @return string
	 */
	public function header($name = '', $default = null) {
		if (empty($this->header)) {
			$header = [];
			if (function_exists('apache_request_headers') && $result = apache_request_headers()) {
				$header = $result;
			} else {
				$server = $this->server ?: $_SERVER;
				foreach ($server as $key => $val) {
					if (0 === strpos($key, 'HTTP_')) {
						$key = str_replace('_', '-', strtolower(substr($key, 5)));
						$header[$key] = $val;
					}
				}
				if (isset($server['CONTENT_TYPE'])) {
					$header['content-type'] = $server['CONTENT_TYPE'];
				}
				if (isset($server['CONTENT_LENGTH'])) {
					$header['content-length'] = $server['CONTENT_LENGTH'];
				}
			}
			$this->header = array_change_key_case($header);
		}
		if (is_array($name)) {
			return $this->header = array_merge($this->header, $name);
		}
		if ('' === $name) {
			return $this->header;
		}
		$name = str_replace('_', '-', strtolower($name));
		return isset($this->header[$name]) ? $this->header[$name] : $default;
	}

	/**
	 * 获取变量 支持过滤和默认值
	 * @param array        $data    数据源
	 * @param string|false $name    字段名
	 * @param mixed        $default 默认值
	 * @param string|array $filter  过滤函数
	 * @return mixed
	 */
	public function input($data = [], $name = '', $default = null, $filter = '') {
		if (false === $name) {
			// 获取原始数据
			return $data;
		}
		$name = (string) $name;
		if ('' != $name) {
			// 解析name
			if (strpos($name, '/')) {
				list($name, $type) = explode('/', $name);
			} else {
				$type = 's';
			}
			// 按.拆分成多维数组进行判断
			foreach (explode('.', $name) as $val) {
				if (isset($data[$val])) {
					$data = $data[$val];
				} else {
					// 无输入数据，返回默认值
					return $default;
				}
			}
			if (is_object($data)) {
				return $data;
			}
		}

		// 解析过滤器
		$filter = $this->getFilter($filter, $default);

		if (is_array($data)) {
			array_walk_recursive($data, [$this, 'filterValue'], $filter);
			reset($data);
		} else {
			$this->filterValue($data, $name, $filter);
		}

		if (isset($type) && $data !== $default) {
			// 强制类型转换
			$this->typeCast($data, $type);
		}
		return $data;
	}

	/**
	 * 设置或获取当前的过滤规则
	 * @param mixed $filter 过滤规则
	 * @return mixed
	 */
	public function filter($filter = null) {
		if (is_null($filter)) {
			return $this->filter;
		} else {
			$this->filter = $filter;
		}
	}

	protected function getFilter($filter, $default) {
		if (is_null($filter)) {
			$filter = [];
		} else {
			$filter = $filter ?: $this->filter;
			if (is_string($filter) && false === strpos($filter, '/')) {
				$filter = explode(',', $filter);
			} else {
				$filter = (array) $filter;
			}
		}

		$filter[] = $default;
		return $filter;
	}

	/**
	 * 递归过滤给定的值
	 * @param mixed $value   键值
	 * @param mixed $key     键名
	 * @param array $filters 过滤方法+默认值
	 * @return mixed
	 */
	private function filterValue(&$value, $key, $filters) {
		$default = array_pop($filters);
		foreach ($filters as $filter) {
			if (is_callable($filter)) {
				// 调用函数或者方法过滤
				$value = call_user_func($filter, $value);
			} elseif (is_scalar($value)) {
				if (false !== strpos($filter, '/')) {
					// 正则过滤
					if (!preg_match($filter, $value)) {
						// 匹配不成功返回默认值
						$value = $default;
						break;
					}
				} elseif (!empty($filter)) {
					// filter函数不存在时, 则使用filter_var进行过滤
					// filter为非整形值时, 调用filter_id取得过滤id
					$value = filter_var($value, is_int($filter) ? $filter : filter_id($filter));
					if (false === $value) {
						$value = $default;
						break;
					}
				}
			}
		}
		return $this->filterExp($value);
	}

	/**
	 * 过滤表单中的表达式
	 * @param string $value
	 * @return void
	 */
	public function filterExp(&$value) {
		// 过滤查询特殊字符
		if (is_string($value) && preg_match('/^(EXP|NEQ|GT|EGT|LT|ELT|OR|XOR|LIKE|NOTLIKE|NOT LIKE|NOT BETWEEN|NOTBETWEEN|BETWEEN|NOT EXISTS|NOTEXISTS|EXISTS|NOT NULL|NOTNULL|NULL|BETWEEN TIME|NOT BETWEEN TIME|NOTBETWEEN TIME|NOTIN|NOT IN|IN)$/i', $value)) {
			$value .= ' ';
		}
		// TODO 其他安全过滤
	}

	/**
	 * 强制类型转换
	 * @param string $data
	 * @param string $type
	 * @return mixed
	 */
	private function typeCast(&$data, $type) {
		switch (strtolower($type)) {
		// 数组
		case 'a':
			$data = (array) $data;
			break;
		// 数字
		case 'd':
			$data = (int) $data;
			break;
		// 浮点
		case 'f':
			$data = (float) $data;
			break;
		// 布尔
		case 'b':
			$data = (boolean) $data;
			break;
		// 字符串
		case 's':
		default:
			if (is_scalar($data)) {
				$data = (string) $data;
			} else {
				throw new \InvalidArgumentException('variable type error：' . gettype($data));
			}
		}
	}

	/**
	 * 是否存在某个请求参数
	 * @access public
	 * @param string $name       变量名
	 * @param string $type       变量类型
	 * @param bool   $checkEmpty 是否检测空值
	 * @return mixed
	 */
	public function has($name, $type = 'param', $checkEmpty = false) {
		if (empty($this->$type)) {
			$param = $this->$type();
		} else {
			$param = $this->$type;
		}
		// 按.拆分成多维数组进行判断
		foreach (explode('.', $name) as $val) {
			if (isset($param[$val])) {
				$param = $param[$val];
			} else {
				return false;
			}
		}
		return ($checkEmpty && '' === $param) ? false : true;
	}

	/**
	 * 获取指定的参数
	 * @access public
	 * @param string|array $name 变量名
	 * @param string       $type 变量类型
	 * @return mixed
	 */
	public function only($name, $type = 'param') {
		$param = $this->$type();
		if (is_string($name)) {
			$name = explode(',', $name);
		}
		$item = [];
		foreach ($name as $key) {
			if (isset($param[$key])) {
				$item[$key] = $param[$key];
			}
		}
		return $item;
	}

	/**
	 * 排除指定参数获取
	 * @access public
	 * @param string|array $name 变量名
	 * @param string       $type 变量类型
	 * @return mixed
	 */
	public function except($name, $type = 'param') {
		$param = $this->$type();
		if (is_string($name)) {
			$name = explode(',', $name);
		}
		foreach ($name as $key) {
			if (isset($param[$key])) {
				unset($param[$key]);
			}
		}
		return $param;
	}

	/**
	 * 当前是否ssl
	 * @access public
	 * @return bool
	 */
	public function isSsl() {
		$server = array_merge($_SERVER, $this->server);
		if (isset($server['HTTPS']) && ('1' == $server['HTTPS'] || 'on' == strtolower($server['HTTPS']))) {
			return true;
		} elseif (isset($server['REQUEST_SCHEME']) && 'https' == $server['REQUEST_SCHEME']) {
			return true;
		} elseif (isset($server['SERVER_PORT']) && ('443' == $server['SERVER_PORT'])) {
			return true;
		} elseif (isset($server['HTTP_X_FORWARDED_PROTO']) && 'https' == $server['HTTP_X_FORWARDED_PROTO']) {
			return true;
		} elseif (Config::get('https_agent_name') && isset($server[Config::get('https_agent_name')])) {
			return true;
		}
		return false;
	}

	/**
	 * 当前是否Ajax请求
	 * @access public
	 * @param bool $ajax true 获取原始ajax请求
	 * @return bool
	 */
	public function isAjax($ajax = false) {
		$value = $this->server('HTTP_X_REQUESTED_WITH', '', 'strtolower');
		$result = ('xmlhttprequest' == $value) ? true : false;
		if (true === $ajax) {
			return $result;
		} else {
			$result = $this->param(Config::get('var_ajax')) ? true : $result;
			$this->mergeParam = false;
			return $result;
		}
	}

	/**
	 * 当前是否Pjax请求
	 * @access public
	 * @param bool $pjax true 获取原始pjax请求
	 * @return bool
	 */
	public function isPjax($pjax = false) {
		$result = !is_null($this->server('HTTP_X_PJAX')) ? true : false;
		if (true === $pjax) {
			return $result;
		} else {
			$result = $this->param(Config::get('var_pjax')) ? true : $result;
			$this->mergeParam = false;
			return $result;
		}
	}

	/**
	 * 获取客户端IP地址
	 * @param integer $type 返回类型 0 返回IP地址 1 返回IPV4地址数字
	 * @param boolean $adv  是否进行高级模式获取（有可能被伪装）
	 * @return mixed
	 */
	public function ip($type = 0, $adv = true) {
		$type = $type ? 1 : 0;
		static $ip = null;
		if (null !== $ip) {
			return $ip[$type];
		}

		$httpAgentIp = Config::get('http_agent_ip');

		if ($httpAgentIp && isset($_SERVER[$httpAgentIp])) {
			$ip = $_SERVER[$httpAgentIp];
		} elseif ($adv) {
			if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
				$arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
				$pos = array_search('unknown', $arr);
				if (false !== $pos) {
					unset($arr[$pos]);
				}
				$ip = trim(current($arr));
			} elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
				$ip = $_SERVER['HTTP_CLIENT_IP'];
			} elseif (isset($_SERVER['REMOTE_ADDR'])) {
				$ip = $_SERVER['REMOTE_ADDR'];
			}
		} elseif (isset($_SERVER['REMOTE_ADDR'])) {
			$ip = $_SERVER['REMOTE_ADDR'];
		}
		// IP地址合法验证
		$long = sprintf("%u", ip2long($ip));
		$ip = $long ? [$ip, $long] : ['0.0.0.0', 0];
		return $ip[$type];
	}

	/**
	 * 检测是否使用手机访问
	 * @access public
	 * @return bool
	 */
	public function isMobile() {
		if (isset($_SERVER['HTTP_VIA']) && stristr($_SERVER['HTTP_VIA'], "wap")) {
			return true;
		} elseif (isset($_SERVER['HTTP_ACCEPT']) && strpos(strtoupper($_SERVER['HTTP_ACCEPT']), "VND.WAP.WML")) {
			return true;
		} elseif (isset($_SERVER['HTTP_X_WAP_PROFILE']) || isset($_SERVER['HTTP_PROFILE'])) {
			return true;
		} elseif (isset($_SERVER['HTTP_USER_AGENT']) && preg_match('/(blackberry|configuration\/cldc|hp |hp-|htc |htc_|htc-|iemobile|kindle|midp|mmp|motorola|mobile|nokia|opera mini|opera |Googlebot-Mobile|YahooSeeker\/M1A1-R2D2|android|iphone|ipod|mobi|palm|palmos|pocket|portalmmm|ppc;|smartphone|sonyericsson|sqh|spv|symbian|treo|up.browser|up.link|vodafone|windows ce|xda |xda_)/i', $_SERVER['HTTP_USER_AGENT'])) {
			return true;
		} else {
			return false;
		}
	}

	/**
	 * 当前URL地址中的scheme参数
	 * @access public
	 * @return string
	 */
	public function scheme() {
		return $this->isSsl() ? 'https' : 'http';
	}

	/**
	 * 当前请求URL地址中的query参数
	 * @access public
	 * @return string
	 */
	public function query() {
		return $this->server('QUERY_STRING');
	}

	/**
	 * 当前请求的host
	 * @access public
	 * @param bool $strict true 仅仅获取HOST
	 * @return string
	 */
	public function host($strict = false) {
		if (isset($_SERVER['HTTP_X_REAL_HOST'])) {
			$host = $_SERVER['HTTP_X_REAL_HOST'];
		} else {
			$host = $this->server('HTTP_HOST');
		}

		return true === $strict && strpos($host, ':') ? strstr($host, ':', true) : $host;
	}

	/**
	 * 当前请求URL地址中的port参数
	 * @access public
	 * @return integer
	 */
	public function port() {
		return $this->server('SERVER_PORT');
	}

	/**
	 * 当前请求 SERVER_PROTOCOL
	 * @access public
	 * @return integer
	 */
	public function protocol() {
		return $this->server('SERVER_PROTOCOL');
	}

	/**
	 * 当前请求 REMOTE_PORT
	 * @access public
	 * @return integer
	 */
	public function remotePort() {
		return $this->server('REMOTE_PORT');
	}

	/**
	 * 当前请求 HTTP_CONTENT_TYPE
	 * @access public
	 * @return string
	 */
	public function contentType() {
		$contentType = $this->server('CONTENT_TYPE');
		if ($contentType) {
			if (strpos($contentType, ';')) {
				list($type) = explode(';', $contentType);
			} else {
				$type = $contentType;
			}
			return trim($type);
		}
		return '';
	}

	/**
	 * 获取当前请求的路由信息
	 * @access public
	 * @param array $route 路由名称
	 * @return array
	 */
	public function routeInfo($route = []) {
		if (!empty($route)) {
			$this->routeInfo = $route;
		} else {
			return $this->routeInfo;
		}
	}

	/**
	 * 设置或者获取当前请求的调度信息
	 * @access public
	 * @param array $dispatch 调度信息
	 * @return array
	 */
	public function dispatch($dispatch = null) {
		if (!is_null($dispatch)) {
			$this->dispatch = $dispatch;
		}
		return $this->dispatch;
	}

	/**
	 * 设置或者获取当前的模块名
	 * @access public
	 * @param string $module 模块名
	 * @return string|Request
	 */
	public function module($module = null) {
		if (!is_null($module)) {
			$this->module = $module;
			return $this;
		} else {
			return $this->module ?: '';
		}
	}

	/**
	 * 设置或者获取当前的控制器名
	 * @access public
	 * @param string $controller 控制器名
	 * @return string|Request
	 */
	public function controller($controller = null) {
		if (!is_null($controller)) {
			$this->controller = $controller;
			return $this;
		} else {
			return $this->controller ?: '';
		}
	}

	/**
	 * 设置或者获取当前的操作名
	 * @access public
	 * @param string $action 操作名
	 * @return string|Request
	 */
	public function action($action = null) {
		if (!is_null($action) && !is_bool($action)) {
			$this->action = $action;
			return $this;
		} else {
			$name = $this->action ?: '';
			return true === $action ? $name : strtolower($name);
		}
	}

	/**
	 * 设置或者获取当前的语言
	 * @access public
	 * @param string $lang 语言名
	 * @return string|Request
	 */
	public function langset($lang = null) {
		if (!is_null($lang)) {
			$this->langset = $lang;
			return $this;
		} else {
			return $this->langset ?: '';
		}
	}

	/**
	 * 设置或者获取当前请求的content
	 * @access public
	 * @return string
	 */
	public function getContent() {
		if (is_null($this->content)) {
			$this->content = $this->input;
		}
		return $this->content;
	}

	/**
	 * 获取当前请求的php://input
	 * @access public
	 * @return string
	 */
	public function getInput() {
		return $this->input;
	}

	/**
	 * 生成请求令牌
	 * @access public
	 * @param string $name 令牌名称
	 * @param mixed  $type 令牌生成方法
	 * @return string
	 */
	public function token($name = '__token__', $type = 'md5') {
		$type = is_callable($type) ? $type : 'md5';
		$token = call_user_func($type, $_SERVER['REQUEST_TIME_FLOAT']);
		if ($this->isAjax()) {
			header($name . ': ' . $token);
		}
		Session::set($name, $token);
		return $token;
	}

	/**
	 * 设置当前地址的请求缓存
	 * @access public
	 * @param string $key    缓存标识，支持变量规则 ，例如 item/:name/:id
	 * @param mixed  $expire 缓存有效期
	 * @param array  $except 缓存排除
	 * @param string $tag    缓存标签
	 * @return void
	 */
	public function cache($key, $expire = null, $except = [], $tag = null) {
		if (!is_array($except)) {
			$tag = $except;
			$except = [];
		}

		if (false !== $key && $this->isGet() && !$this->isCheckCache) {
			// 标记请求缓存检查
			$this->isCheckCache = true;
			if (false === $expire) {
				// 关闭当前缓存
				return;
			}
			if ($key instanceof \Closure) {
				$key = call_user_func_array($key, [$this]);
			} elseif (true === $key) {
				foreach ($except as $rule) {
					if (0 === stripos($this->url(), $rule)) {
						return;
					}
				}
				// 自动缓存功能
				$key = '__URL__';
			} elseif (strpos($key, '|')) {
				list($key, $fun) = explode('|', $key);
			}
			// 特殊规则替换
			if (false !== strpos($key, '__')) {
				$key = str_replace(['__MODULE__', '__CONTROLLER__', '__ACTION__', '__URL__', ''], [$this->module, $this->controller, $this->action, md5($this->url(true))], $key);
			}

			if (false !== strpos($key, ':')) {
				$param = $this->param();
				foreach ($param as $item => $val) {
					if (is_string($val) && false !== strpos($key, ':' . $item)) {
						$key = str_replace(':' . $item, $val, $key);
					}
				}
			} elseif (strpos($key, ']')) {
				if ('[' . $this->ext() . ']' == $key) {
					// 缓存某个后缀的请求
					$key = md5($this->url());
				} else {
					return;
				}
			}
			if (isset($fun)) {
				$key = $fun($key);
			}

			if (strtotime($this->server('HTTP_IF_MODIFIED_SINCE')) + $expire > $_SERVER['REQUEST_TIME']) {
				// 读取缓存
				$response = Response::create()->code(304);
				throw new \think\exception\HttpResponseException($response);
			} elseif (Cache::has($key)) {
				list($content, $header) = Cache::get($key);
				$response = Response::create($content)->header($header);
				throw new \think\exception\HttpResponseException($response);
			} else {
				$this->cache = [$key, $expire, $tag];
			}
		}
	}

	/**
	 * 读取请求缓存设置
	 * @access public
	 * @return array
	 */
	public function getCache() {
		return $this->cache;
	}

	/**
	 * 设置当前请求绑定的对象实例
	 * @access public
	 * @param string|array $name 绑定的对象标识
	 * @param mixed        $obj  绑定的对象实例
	 * @return mixed
	 */
	public function bind($name, $obj = null) {
		if (is_array($name)) {
			$this->bind = array_merge($this->bind, $name);
		} else {
			$this->bind[$name] = $obj;
		}
	}

	public function __set($name, $value) {
		$this->bind[$name] = $value;
	}

	public function __get($name) {
		return isset($this->bind[$name]) ? $this->bind[$name] : null;
	}

	public function __isset($name) {
		return isset($this->bind[$name]);
	}
}
